CVE-2021-3636
OpenShift Service CA Certificate Spoofing Vulnerability
Description
It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.
INFO
Published Date :
July 30, 2021, 8:15 p.m.
Last Modified :
Nov. 7, 2023, 3:38 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
2.5
Exploitability Score :
2.1
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3636.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1978621 | Exploit Issue Tracking Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3636 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3636 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-287 -
Reanalysis by [email protected]
Oct. 27, 2022
Action Type Old Value New Value Added CWE NIST CWE-287 -
Initial Analysis by [email protected]
Aug. 09, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1978621 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1978621 Exploit, Issue Tracking, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:redhat:openshift:*:*:*:*:*:*:*:* versions up to (excluding) 4.8
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3636 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3636
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10669
percentile